SATELLITE MONITORING OF OIL SPILLS CAUSED BY THE HEBEI SPIRIT ACCIDENT
Chan-Su Yang*
1, Gi-Ho Yeom*
2**, Ji-Seong Chang *
3*Korea Ocean Satellite Center
Ocean Satellite Remote Sensing & Observation Technology Research Department Korea Ocean Research & Development Institute
1270 Sa-2-dong Sangrok-gu Ansan-city, 426-744, Korea E-mail: 1[email protected]
**Department of Applied Physics, Hanyang University
ABSTRACT Oil spills are a principal factor of the ocean pollution. The complicated problems involved in detecting oil spills are usually due to varying wind and sea surface condition such as ocean wave and current. The Hebei Spirit accident was happened in the west sea (36°47´04˝ N, 126°03´12˝ E) near about 8 km distant from Tae-An, Korea on December 7, 2007. The aim of this work is to improve the detection and classification performance in order to define a more accurate training set and identifying the feature of oil spill region. This paper deals with an optimization technique for the detection and classification scheme using multi-frequency and multi-polarization SAR and optical image data sets of the oil spilled sea. The used image data are the ENVISAT ASAR WS and Radarsat-1of C-band and ALOS PALSAR of L-band SAR data and KOMPSAT-2 optical images together with meteorological or oceanographic data.
Both the theory and the experimental results obtained are discussed.
KEY WORDS: Oil Spill, HEBEI SPIRIT, SAR, KOMPSAT-2
Figure 1. Location of oil spill accident occurred on December 7, 2007 and research area.
125oE 126oE 127oE
35oN 36oN 37oN 38oN
48' 126oE 12'
36' 48'
37oN
Yellow Sea
124oE 126oE 128oE 34oN
36oN 38oN
Rep. of Korea Taeanhaean
National Park
Malipo
Collision:
Accident Location At 07:00 local time
10 km
125oE 126oE 127oE 35oN
36oN 37oN 38oN
124oE 126oE 128oE 34oN
36oN 38oN
ASAR_WS(12-11)
ASAR_W S(12-14)
>200m
20m intervals
Figure 2. List of satellite data obtained during the Hebei Spirit Oil Spill from Dec. 8 to 22, 2008.
